ip转城市接口,ip转省份接口,ip转城市PHP方法

$url = ‘http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=‘.$ip;$arr = json_decode(file_get_contents($url),true);

$url = ‘http://ip.taobao.com/service/getIpInfo.php?ip=‘.$ip;$arr = json_decode(file_get_contents($url),true);

function convertip($ip) { ??????$ip1num = 0; ?????$ip2num = 0; ?????$ipAddr1 =""; ?????$ipAddr2 =""; ?????$dat_path = ‘./QQWry.Dat‘; ?????????????if(!preg_match("/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/", $ip)) { ????????return ‘IP Address Error‘; ??????} ???????if(!$fd = @fopen($dat_path, ‘rb‘)){ ????????return ‘IP date file not exists or access denied‘; ??????} ???????$ip = explode(‘.‘, $ip); ??????$ipNum = $ip[0] * 16777216 + $ip[1] * 65536 + $ip[2] * 256 + $ip[3]; ???????$DataBegin = fread($fd, 4); ??????$DataEnd = fread($fd, 4); ??????$ipbegin = implode(‘‘, unpack(‘L‘, $DataBegin)); ??????if($ipbegin < 0) $ipbegin += pow(2, 32); ??????$ipend = implode(‘‘, unpack(‘L‘, $DataEnd)); ??????if($ipend < 0) $ipend += pow(2, 32); ??????$ipAllNum = ($ipend - $ipbegin) / 7 + 1; ??????$BeginNum = 0; ??????$EndNum = $ipAllNum; ???????while($ip1num>$ipNum || $ip2num<$ipNum) { ??????????$Middle= intval(($EndNum + $BeginNum) / 2); ??????????fseek($fd, $ipbegin + 7 * $Middle); ??????????$ipData1 = fread($fd, 4); ??????????if(strlen($ipData1) < 4) { ??????????????fclose($fd); ??????????????return ‘System Error‘; ??????????} ?????????$ip1num = implode(‘‘, unpack(‘L‘, $ipData1)); ??????????if($ip1num < 0) $ip1num += pow(2, 32); ??????????????if($ip1num > $ipNum) { ????????????$EndNum = $Middle; ????????????continue; ??????????} ??????????$DataSeek = fread($fd, 3); ??????????if(strlen($DataSeek) < 3) { ????????????fclose($fd); ????????????return ‘System Error‘; ??????????} ??????????$DataSeek = implode(‘‘, unpack(‘L‘, $DataSeek.chr(0))); ??????????fseek($fd, $DataSeek); ??????????$ipData2 = fread($fd, 4); ??????????if(strlen($ipData2) < 4) { ????????????fclose($fd); ????????????return ‘System Error‘; ??????????} ??????????$ip2num = implode(‘‘, unpack(‘L‘, $ipData2)); ??????????if($ip2num < 0) $ip2num += pow(2, 32); ???????????if($ip2num < $ipNum) { ??????????????if($Middle == $BeginNum) { ????????????????fclose($fd); ????????????????return ‘Unknown‘; ??????????????} ??????????????$BeginNum = $Middle; ??????????} ??????} ???????$ipFlag = fread($fd, 1); ??????if($ipFlag == chr(1)) { ??????????$ipSeek = fread($fd, 3); ??????????if(strlen($ipSeek) < 3) { ??????????????fclose($fd); ??????????????return ‘System Error‘; ??????????} ??????????$ipSeek = implode(‘‘, unpack(‘L‘, $ipSeek.chr(0))); ??????????fseek($fd, $ipSeek); ??????????$ipFlag = fread($fd, 1); ??????} ??????if($ipFlag == chr(2)) { ??????????$AddrSeek = fread($fd, 3); ??????????if(strlen($AddrSeek) < 3) { ??????????????fclose($fd); ??????????????return ‘System Error‘; ??????????} ??????????$ipFlag = fread($fd, 1); ??????????if($ipFlag == chr(2)) { ??????????????$AddrSeek2 = fread($fd, 3); ??????????????if(strlen($AddrSeek2) < 3) { ??????????????????fclose($fd); ??????????????????return ‘System Error‘; ??????????????} ??????????????$AddrSeek2 = implode(‘‘, unpack(‘L‘, $AddrSeek2.chr(0))); ??????????????fseek($fd, $AddrSeek2); ??????????} else { ??????????????fseek($fd, -1, SEEK_CUR); ??????????} ??????????while(($char = fread($fd, 1)) != chr(0)) ??????????$ipAddr2 .= $char; ??????????$AddrSeek = implode(‘‘, unpack(‘L‘, $AddrSeek.chr(0))); ??????????fseek($fd, $AddrSeek); ??????????while(($char = fread($fd, 1)) != chr(0)) ??????????$ipAddr1 .= $char; ??????} else { ??????????fseek($fd, -1, SEEK_CUR); ??????????while(($char = fread($fd, 1)) != chr(0)) ??????????$ipAddr1 .= $char; ??????????$ipFlag = fread($fd, 1); ??????????if($ipFlag == chr(2)) { ??????????????$AddrSeek2 = fread($fd, 3); ??????????????if(strlen($AddrSeek2) < 3) { ????????????????fclose($fd); ????????????????return ‘System Error‘; ??????????????} ??????????????$AddrSeek2 = implode(‘‘, unpack(‘L‘, $AddrSeek2.chr(0))); ??????????????fseek($fd, $AddrSeek2); ??????????} else { ??????????????fseek($fd, -1, SEEK_CUR); ??????????} ??????????while(($char = fread($fd, 1)) != chr(0)){ ??????????????$ipAddr2 .= $char; ??????????} ??????} ??????fclose($fd); ???????if(preg_match(‘/http/i‘, $ipAddr2)) { ??????????$ipAddr2 = ‘‘; ??????} ???// $ipAddr1河北省石家庄市 $ipAddr2联通 ???// $ipaddr = "$ipAddr1 $ipAddr2"; ??????$ipaddr = $ipAddr1; ???$ipaddr = preg_replace(‘/CZ88.NET/is‘, ‘‘, $ipaddr); ??????$ipaddr = preg_replace(‘/^s*/is‘, ‘‘, $ipaddr); ??????$ipaddr = preg_replace(‘/s*$/is‘, ‘‘, $ipaddr); ??????if(preg_match(‘/http/i‘, $ipaddr) || $ipaddr == ‘‘) { ??????????$ipaddr = ‘Unknown‘; ??????} ??????return $ipaddr; ??}